Patents by Inventor Shih-Chang Tsai

Shih-Chang Tsai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10163640
    Abstract: A method of forming a gate isolation plug for FinFETs includes forming an elongated gate, forming first and second spacers in contact with first and second sidewalls of the elongated gate, separating the elongated gate into first and second gate portions using first and second etching steps, and forming a gate isolation plug between the first and second gate portions, wherein a length of the gate isolation plug is greater than a length of either of the first or second gate portions.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 25, 2018
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wen-Shuo Hsieh, Shih-Chang Tsai, Chih-Han Lin, Te-Yung Liu
  • Publication number: 20180308949
    Abstract: A method for fabricating a semiconductor device is provided including an opening in a gate electrode layer to form two spaced apart gate electrode layers. An oxidation or nitridation treatment is performed in a region between the two spaced apart gate electrode layers. A first insulating layer is formed in the opening between the two spaced apart gate electrode layers.
    Type: Application
    Filed: October 5, 2017
    Publication date: October 25, 2018
    Inventors: Chih-Han LIN, Shih-Chang TSAI, Wen-Shuo HSIEH, Te-Yung LIU
  • Patent number: 9601349
    Abstract: The invention is directed to a method for patterning a material layer. The method comprises steps of providing a material layer having a first hard mask layer and a second hard mask layer successively formed thereon and then patterning the second hard mask layer. Thereafter, an etching process is performed to pattern the first hard mask layer by using the patterned second hard mask layer as a mask, and the etching process is performed with a power of about 1000 W. Next, the material layer is patterned by using the patterned first hard mask layer as a mask.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: March 21, 2017
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Yu-Chung Chen, Hsin-Fang Su, Shih-Chang Tsai
  • Patent number: 9576903
    Abstract: Provided is a structure with a conductive plug including a substrate, a first dielectric layer, an etch stop layer, a second dielectric layer, a conductive plug and a liner. The substrate has a conductive region therein. The first dielectric layer, the etch stop layer and the second dielectric layer are sequentially formed on the substrate and have at least one opening therethrough. Besides, the opening has a substantially vertical sidewall. The conductive plug fills in the opening and is electrically connected to the conductive region. The liner surrounds the upper portion of the conductive plug. A method of forming a structure with a conductive plug is further provided.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: February 21, 2017
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Ching-Hsiung Lee, Shih-Chang Tsai
  • Publication number: 20170018500
    Abstract: Provided is a structure with a conductive plug including a substrate, a first dielectric layer, an etch stop layer, a second dielectric layer, a conductive plug and a liner. The substrate has a conductive region therein. The first dielectric layer, the etch stop layer and the second dielectric layer are sequentially formed on the substrate and have at least one opening therethrough. Besides, the opening has a substantially vertical sidewall. The conductive plug fills in the opening and is electrically connected to the conductive region. The liner surrounds the upper portion of the conductive plug. A method of forming a structure with a conductive plug is further provided.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 19, 2017
    Inventors: Ching-Hsiung Lee, Shih-Chang Tsai
  • Publication number: 20160288363
    Abstract: A strip coupling tenon forming machine for cutting a plurality of strips includes a station and a movement deck located on the station, a plane cutting device and a sawteeth cutting device. The movement deck has a holding deck to hold the strips, a slide element to carry and slide and swivel the holding deck and a rotary element. The rotary element has a holding bar anchored on the station and a rotary bar to support the holding deck. The rotary bar screws into the holding bar so that while the holding deck is swiveling its elevation also is changed. Thus, end surfaces at two sides of the strips can pass through respectively a plane cutter of the cutting device and a sawteeth cutter of the sawteeth cutting device to form respectively a coupling tenon thereon that are matched in elevation.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 6, 2016
    Inventors: CHIN-LIANG TU, I-LUN TU, SHIH-CHANG TSAI
  • Publication number: 20160288360
    Abstract: A wooden tenon press and connection machine for coupling a plurality of wooden strips includes a station and a slide deck located on the station, a plane cutting device, a sawtooth cutting device, a gluing device, a thrust device and a press device that are located on the station. The slide deck carries the wooden strips sliding so that end surfaces at two sides of the wooden strips can pass through respectively a plane cutter of the plane cutting device and a sawtooth cutter of the sawtooth cutting device to form a wooden tenon on each of the end surfaces at two sides of the wooden strips. The two wooden tenons are daubed with a glue through the gluing device, and pressed through the press device and pushed and moved through the thrust device so that corresponding tenons of the wooden strips are tightly coupled together.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 6, 2016
    Inventors: CHIN-LIANG TU, I-LUN TU, SHIH-CHANG TSAI
  • Patent number: 9337048
    Abstract: A method of fabricating wordlines in semiconductor memory structures is disclosed that eliminates stringers between wordlines while maintaining a stable distribution of threshold voltage. A liner is deposited before performing a wordline etch, and a partial wordline etch is then performed. Remaining portions of the liner are removed, and the wordline etch is completed to form gates having vertical or tapered profiles.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: May 10, 2016
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Ching-Hsiung Lee, Shih-Chang Tsai
  • Patent number: 9312357
    Abstract: A semiconductor device and a method for manufacturing the same. The method includes steps hereinafter. A substrate is provided with a first dielectric layer thereon. The first dielectric layer is provided with a trench. Then, a metal layer is formed to fill the trench and to cover the surface of the first dielectric layer. The metal layer is partially removed so that a remaining portion of the metal layer covers the first dielectric layer. A treatment process is performed to transform the remaining portion of the metal layer into a passivation layer on the top portion and a gate metal layer on the bottom portion. A chemical-mechanical polishing process is performed until the first dielectric layer is exposed so that a remaining portion of the passivation layer remains in the trench.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: April 12, 2016
    Assignee: United Microelectronics Corporation
    Inventors: Shih-Chang Tsai, Tzu-Chin Tseng, Hsiao-Ting Lin, Chang-Yih Chen, Sam Lai
  • Publication number: 20160093712
    Abstract: A semiconductor device and a method for manufacturing the same. The method includes steps hereinafter. A substrate is provided with a first dielectric layer thereon. The first dielectric layer is provided with a trench. Then, a metal layer is formed to fill the trench and to cover the surface of the first dielectric layer. The metal layer is partially removed so that a remaining portion of the metal layer covers the first dielectric layer. A treatment process is performed to transform the remaining portion of the metal layer into a passivation layer on the top portion and a gate metal layer on the bottom portion. A chemical-mechanical polishing process is performed until the first dielectric layer is exposed so that a remaining portion of the passivation layer remains in the trench.
    Type: Application
    Filed: October 16, 2014
    Publication date: March 31, 2016
    Inventors: SHIH-CHANG TSAI, TZU-CHIN TSENG, HSIAO-TING LIN, CHANG-YIH CHEN, SAM LAI
  • Publication number: 20160086806
    Abstract: A method of fabricating wordlines in semiconductor memory structures is disclosed that eliminates stringers between wordlines while maintaining a stable distribution of threshold voltage. A liner is deposited before performing a wordline etch, and a partial wordline etch is then performed. Remaining portions of the liner are removed, and the wordline etch is completed to form gates having vertical or tapered profiles.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 24, 2016
    Inventors: Ching-Hsiung Lee, Shih-Chang Tsai
  • Patent number: 8969202
    Abstract: A method of manufacturing a metal silicide is disclosed below. A substrate having a first region and a second region is provided. A silicon layer is formed on the substrate. A planarization process is performed to make the silicon layer having a planar surface. A part of the silicon layer is removed to form a plurality of first gates on the first region and to form a plurality of second gates on the second region. The height of the first gates is greater than the height of the second gates, and top surfaces of the first gates and the second gates have the same height level. A dielectric layer covering the first gates and the second gates is formed and exposes the top surfaces of the first gates and the second gates. A metal silicide is formed on the top surfaces of the first gates and the second gates.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: March 3, 2015
    Assignee: Macronix International Co., Ltd.
    Inventors: Yen-Hao Shih, Ying-Tso Chen, Shih-Chang Tsai, Chun-Fu Chen
  • Publication number: 20140154881
    Abstract: A method of manufacturing a metal silicide is disclosed below. A substrate having a first region and a second region is provided. A silicon layer is formed on the substrate. A planarization process is performed to make the silicon layer having a planar surface. A part of the silicon layer is removed to form a plurality of first gates on the first region and to form a plurality of second gates on the second region. The height of the first gates is greater than the height of the second gates, and top surfaces of the first gates and the second gates have the same height level. A dielectric layer covering the first gates and the second gates is formed and exposes the top surfaces of the first gates and the second gates. A metal silicide is formed on the top surfaces of the first gates and the second gates.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: Macronix International Co., Ltd.
    Inventors: Yen-Hao Shih, Ying-Tso Chen, Shih-Chang Tsai, Chun-Fu Chen
  • Patent number: 8735969
    Abstract: A semiconductor structure and a manufacturing method thereof are provided. The semiconductor structure includes a stacked structure, a plurality of first conductive blocks, a plurality of first conductive layers, a plurality of second conductive layers, and a plurality of conductive damascene structures. The stacked structure, comprising a plurality of conductive strips and a plurality of insulating strips, is formed on a substrate, and the conductive strips and the insulating strips are interlaced. The first conductive blocks are formed on the stacked structure. The first conductive layers and the second conductive layers are formed on two sidewalls of the stacked structure, respectively. The conductive damascene structures are formed on two sides of the stacked structure, wherein each of the first conductive blocks is electrically connected to each of the conductive damascene structures via each of the first conductive strips and each of the second conductive strips.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: May 27, 2014
    Assignee: Macronix International Co., Ltd.
    Inventors: Erh-Kun Lai, Yen-Hao Shih, Shih-Chang Tsai
  • Publication number: 20140124945
    Abstract: A semiconductor structure and a manufacturing method thereof are provided. The semiconductor structure includes a stacked structure, a plurality of first conductive blocks, a plurality of first conductive layers, a plurality of second conductive layers, and a plurality of conductive damascene structures. The stacked structure, comprising a plurality of conductive strips and a plurality of insulating strips, is formed on a substrate, and the conductive strips and the insulating strips are interlaced. The first conductive blocks are formed on the stacked structure. The first conductive layers and the second conductive layers are formed on two sidewalls of the stacked structure, respectively. The conductive damascene structures are formed on two sides of the stacked structure, wherein each of the first conductive blocks is electrically connected to each of the conductive damascene structures via each of the first conductive strips and each of the second conductive strips.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Erh-Kun Lai, Yen-Hao Shih, Shih-Chang Tsai
  • Patent number: 8674410
    Abstract: A method of manufacturing a metal silicide is disclosed below. A substrate having a first region and a second region is proviced. A silicon layer is formed on the substrate. A planarization process is performed to make the silicon layer having a planar surface. A part of the silicon layer is removed to form a plurality of first gates on the first region and to form a plurality of second gates on the second region. The height of the first gates is greater than the height of the second gates, and top surfaces of the first gates and the second gates have the same height level. A dielectric layer covering the first gates and the second gates is formed and exposes the top surfaces of the first gates and the second gates. A metal silicide is formed on the top surfaces of the first gates and the second gates.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: March 18, 2014
    Assignee: Macronix International Co., Ltd.
    Inventors: Yen-Hao Shih, Ying-Tso Chen, Shih-Chang Tsai, Chun-Fu Chen
  • Publication number: 20130234210
    Abstract: A method of manufacturing a metal silicide is disclosed below. A substrate having a first region and a second region is proviced. A silicon layer is formed on the substrate. A planarization process is performed to make the silicon layer having a planar surface. A part of the silicon layer is removed to form a plurality of first gates on the first region and to form a plurality of second gates on the second region. The height of the first gates is greater than the height of the second gates, and top surfaces of the first gates and the second gates have the same height level. A dielectric layer covering the first gates and the second gates is formed and exposes the top surfaces of the first gates and the second gates. A metal silicide is formed on the top surfaces of the first gates and the second gates.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 12, 2013
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Yen-Hao Shih, Ying-Tso Chen, Shih-Chang Tsai, Chun-Fu Chen
  • Patent number: 7939451
    Abstract: A method for fabricating a patter is provided as followed. First, a material layer is provided, whereon a patterned hard mask layer is formed. A spacer is deposited on the sidewalls of the patterned hard mask layer. Then, the patterned hard mask layer is removed, and an opening is formed between the adjacent spacers. Afterwards, a portion of the material layer is removed to form a patterned material layer by using the spacer as mask.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: May 10, 2011
    Assignee: Macronix International Co., Ltd.
    Inventors: Shih-Chang Tsai, Chun-Hung Lee, Ming-Cheng Deng, Ta-Hung Yang
  • Publication number: 20100209675
    Abstract: The invention is directed to a method for patterning a material layer. The method comprises steps of providing a material layer having a first hard mask layer and a second hard mask layer successively formed thereon and then patterning the second hard mask layer. Thereafter, an etching process is performed to pattern the first hard mask layer by using the patterned second hard mask layer as a mask, and the etching process is performed with a power of about 1000 W. Next, the material layer is patterned by using the patterned first hard mask layer as a mask.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 19, 2010
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Yu-Chung Chen, Hsin-Fang Su, Shih-Chang Tsai
  • Publication number: 20080305635
    Abstract: A method for fabricating a patter is provided as followed. First, a material layer is provided, whereon a patterned hard mask layer is formed. A spacer is deposited on the sidewalls of the patterned hard mask layer. Then, the patterned hard mask layer is removed, and an opening is formed between the adjacent spacers. Afterwards, a portion of the material layer is removed to form a patterned material layer by using the spacer as mask.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 11, 2008
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Shih-Chang Tsai, Chun-Hung Lee, Ming-Cheng Deng, Ta-Hung Yang